Reasoning Questions: Syllogism Set 13

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1. Some stars are moons. All Suns are moon. No earth is a star.
   I.All stars are not earth
   II.No earth is a moon
   1.Only I follow
   2.Only II follow
   3.Either I or II follow
   4.Neither I nor II follow
   5.Both I and II follow
   
   Answer & Explanation

   Answer –1.Only I follow
   Explanation :
   From I and III => some stars are not earth = all stars are not earth => True
   From III =>Only star is not earth => False
   
   
   
2. All cars are vans. No van is a bus
   I.Atleast some cars are buses
   II.No car is a bus
   1.Only I follow
   2.Only II follow
   3.Either I or II follow
   4.Neither I nor II follow
   5.Both I and II follow
   
   Answer & Explanation

   Answer –2.Only II follow
   Explanation :
   All+no = no => II true
   Hence II does not follow
   
   
   
3. Some papers are questions. All questions are answers. No copy is a paper
   I.Some questions not being paper is a possibility
   II.Some questions are not copies
   1.Only I follow
   2.Only II follow
   3.Either I or II follow
   4.Neither I nor II follow
   5.Both I and II follow
   
   Answer & Explanation

   Answer –5.Both I and II follow
   Explanation :
   I => Some papers are questions => Some questions are papers => possibility exist
   From I and III=> some +no= some not
   
   
   
4. All coins are notes. No note is a rupee. Some rupees are dollars
   I.All coins are rupees
   II.No note is a dollar
   1.Only I follow
   2.Only II follow
   3.Either I or II follow
   4.Neither I nor II follow
   5.Both I and II follow
   
   Answer & Explanation

   Answer –4.Neither I nor II follow
   Explanation :
   I and II => All+ no = no => I does not follow
   II and III =>No + some =some not => II does not follow
   
   
   
5. Some classes are schools. No college is a school. Some colleges are institute.
   I.All institutes being class is a possibility
   II.No school is a college
   III. All institutes are colleges
   1.Only I follow
   2.Only II follow
   3.Either I or II follow
   4.Neither I nor II follow
   5.Both I and II follow
   
   Answer & Explanation

   Answer –I and II follow
   Explanation :
   I => No connection b/w class and institute so possibility can exist
   II=> No college is a school => No school is a college => true
   III=> Some colleges are institute => III does not exist
   
   
   
6. Some rivers are lakes. Some lakes are pond.No pond is a ocean
   I.All rivers are pond
   II.No ocean is a lake
   1.Only I follow
   2.Only II follow
   3.Either I or II follow
   4.Neither I nor II follow
   5.Both I and II follow
   
   Answer & Explanation

   Answer – 4.Neither I nor II follow
   Explanation :
   I => some +some = no conclusion => I does not follow
   II=> Some+no = some not => II does not follow
   
   
   
7. Some rings are bangles. Some bangles are watches.No watch is a gold
   I.All golds are watches
   II.All rings being watch is a possibility
   III.Atleast some bangles are not gold
   1.Only I follow
   2.Only II follow
   3.Either I or II follow
   4.Both I and II follow
   5.Both II and III follow
   
   Answer & Explanation

   Answer –5.Both II and III follow
   Explanation :
   I => No watch is a gold=> I does not follow
   II=> No connection b/w ring and watch hence possibility can exist
   III=> some +no => some not => III follow
   
   
   
8. All blades are sharp.Some blades are blunt.No blunt is a sword.
   I.All sword being blades is a possibility.
   II.At least some blades may be sharp.
   1.Only I follow
   2.Only II follow
   3.Either I or II follow
   4.Neither I nor II follow
   5.Both I and II follow
   
   Answer & Explanation

   Answer –5.Both I and II follow
   Explanation :
   I=> Some+no =some not=> possibility can exist
   II=> All=> some=> I follow
   
   
   
9. All bottles are cups. No cup is a plate. Some spoons are plate
   I.At least some spoons are not cups
   II.No plate is a cup
   1.Only I follow
   2.Only II follow
   3.Either I or II follow
   4.Neither I nor II follow
   5.Both I and II follow
   
   Answer & Explanation

   Answer –5.Both I and II follow
   Explanation :
   I=> some + no => some not =>true
   II=> No cup is a plate => No plate is a cup => true
   
   
   
10. No triangle is a square.No square is a circle. Some rectangles are circles.
    I.Some triangles are not circles
    II.At least some rectangles are not squares.
    1.Only I follow
    2.Only II follow
    3.Either I or II follow
    4.Neither I nor II follow
    5.Both I and II follow
    
    Answer & Explanation

    Answer –2.Only II follow
    Explanation :
    I=>No+ No = No conclusion => I does not follow
    II=> Some+no => some not => II follow
    
    
    

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